One of these ports connects to the charcoal canister area. The other is for the IHKR heater control. Can someone assist in determining which goes where? 2001 M54 rear of intake.

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2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed,